Arm for lighting fixture



FIG. 1 is a right side view of an arm for a lighting fixture. The left side view is a mirror image thereof.

FIG. 2 is a back view of an arm for a lighting fixture.

FIG. 3 is a front view of an arm for a lighting fixture.

FIG. 4 is a top view of an arm for a lighting fixture; and,

FIG. 5 is a bottom view of an arm for a lighting fixture. 

The ornamental design for an arm for lighting fixture, as shown and described. 